Is it possible to extend setWatch to include timer interrupts?

Thanks that helps. On the queue problem here's what I've been looking at based on the E.on('IRQ15', function() { ... }) that you've been suggesting.

//an object
function IRQ(a){
  this.A=a;
}//end LogObj
//create an instance
var a=new IRQ(3);
//display the object
console.log(a);
//create a listener for the object
a.on("IRQ1",function(d){
//ISR code goes here
//then display the timer results
  console.log("IRQ1");
  console.log(d);
});

//Simulate the interrupt
a.emit("IRQ1","hello");

IRQ.prototype.setup = function() {
// setup asm code in memory
// put address in interrupt table
};

>echo(0);
{ "A": 3 }
=undefined
IRQ1
hello

So either place the call to a.emit in the assembly code or call the assembly code from the a.on() function and place the corresponding address in the interrupt table.
How does one obtain the address of a function such as a.emit to call?